<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    .btn {
      font-size: 30px;
    }
  </style>
</head>
<body>
  <!-- react的root -->
  <div id="root"></div>

  <div class=""></div>
  <input type="text">

  <!-- <script src="https://cdn.bootcdn.net/ajax/libs/axios/1.2.0/axios.min.js"></script> -->
  <script src="https://cdn.bootcdn.net/ajax/libs/react/18.2.0/umd/react.production.min.js"></script>
  <script>
    const message = "hello html"
    console.log(message)
  </script>
</body>
</html>